GTS Transceiver PHY User Guide

ID 817660
Date 10/07/2024
Public
Document Table of Contents

4.1. IP Parameters

The table below lists the IP paametes fo the GTS System PLL Clocks Itel FPGA IP.
Figue 73. GTS System PLL Clock Itel FPGA IP Paamete Edito
Table 73.  GTS System PLL Clock Itel FPGA IP Paametes
Paamete Values Desciptio
System PLL
Use case of system PLL TRANSCEIVER_USE_CASE Use case of system PLL. Use the TRANSCEIVER_USE_CASE to supply clock to the tasceives.
Mode of system PLL Use Cofiguatio Selects the mode of system PLL. Oly available whe Use case of system PLL is set to TRANSCEIVER_USE_CASE.
  • Use cofiguatio— maually cofigue the output fequecy of the system PLL ad iput efeece clock fequecy. Fo use i o- PCIe* use cases whe othe Etheet pesets do ot meet you equiemets.
  • Use PCIe-based cofiguatio — maually cofigue the output fequecy of system PLL ad iput efeece clock fequecy. Fo use i PCIe* use cases whe the PCIe* pesets do ot meet you equiemets.
  • ETHERNET_FREQ_ <output-feq>_<efclk-feq> — pesets fo Etheet use cases. output_feq is the system PLL output fequecy ad efclk_feq is the system PLL efeece clock fequecy.
  • PCIE_FREQ_<output-feq> — pesets fo PCIe use cases. output_feq is the system PLL output fequecy.
Note: The fequecy umbe i the peset labels ae abbeviated; they ae ot the full pecise fequecies. Refe to the Peset Refeece Clock ad Output Fequecies table fo the full fequecies.
The default value is ETHERNET_FREQ_322_156.
Use PCIe* -based Cofiguatio
ETHERNET_FREQ_322_156
ETHERNET_FREQ_322_322
PCIE_FREQ_250
PCIE_FREQ_275
PCIE_FREQ_300
PCIE_FREQ_325
PCIE_FREQ_350
PCIE_FREQ_375
PCIE_FREQ_400
PCIE_FREQ_425
PCIE_FREQ_450
PCIE_FREQ_475
PCIE_FREQ_500
Refclk fequecy 25.78125 MHz to 380 MHz

Specifies the efeece clock fequecy.

Output fequecy C0 31.25 MHz to 1000 MHz Specifies the output fequecy of the system PLL C0 i MHz. I the backgoud, the algoithm calculates the legal efeece clock fequecies fo that clock output fequecy. Fo coect calculatio, specify the exact fequecy with decimal poits.
Note: You must esue that the output fequecy of the system PLL ad the GTS PMA/FEC Diect PHY Itel FPGA IP ae set to the same fequecy if you ae usig the system PLL clockig mode.